For UL 1077 / CSA C22.2 No. 235 recognition, the breaking capacity is 5 kA — a lower figure that still covers most North American branch circuits. The D-curve's magnetic trip range (10–20× In) means the breaker holds through the 6–8× inrush of a direct-on-line motor start but clears quickly on a bolted fault. The 3-pole design switches all three phases simultaneously; neutral is not switched.
Occupies 3 modular width units (each 18 mm, so 54 mm total width). IP20 with connected conductors; the terminals accept combined top and bottom feed, and the supply cord position can be either end. Sealable for panel-lockout procedures. Vibration resistance per IEC 60068-2-6: ±1 mm at 5–25 Hz, 50 m/s² at 25–150 Hz — rated for machine-mounted panels.